Recommended Guidelines for Search Boundaries


Hi all,


I have been asked a lot for guidelines around some of the boundaries for MOSS Search. Here is a quick table that does a good job on this:


 

































































Search object


Guidelines for acceptable performance


Notes


Search indexes


One per SSP


Maximum of 20 per farm


MOSS supports one content index per SSP. Given that we recommend a maximum of 20 SSPs per farm, a maximum of 20 content indexes is supported.


Note that an SSP can be associated with only one index server and one content index. However, an index server can be associated with multiple SSPs and have a content index for each SSP.


Indexed documents


50,000,000 per content index


MOSS supports 50 million documents per index server.


Content sources


500 per SSP


This is a hard limit enforced by the system.


Start Addresses


500 per content source


This is a hard limit enforced by the system.


Alerts


1,000,000 per SSP


This is the tested limit.


Scopes


200 per site


This is a recommended limit per site. We recommend a maximum of 100 scope rules per scope.


Display groups


25 per site


These are used for a grouped display of scopes through the user interface.


Crawl rules


10,000 per SSP


We recommend a maximum 10,000 crawl rules irrespective of type.


Keywords


15,000 per site


We recommend a maximum of 10 Best Bets and five synonyms per keyword.


Crawled properties


500,000 per SSP


These are properties that are discovered during a crawl.


Managed properties


100,000 per SSP


These are properties used by the search system in queries. Crawled properties are mapped to managed properties. We recommend a maximum of 100 mappings per managed property.


Authoritative pages


200 per relevance level


This is the maximum number of sites in each of the four relevance levels.


Results removal


100


This is the maximum recommended number of URLs that should be removed from the system in one operation.


Crawl logs


50,000,000


Number of individual log entries in the crawl log.



For more information, see the "Plan for Software Boundaries" at: http://technet2.microsoft.com/Office/en-us/library/6a13cd9f-4b44-40d6-85aa-c70a8e5c34fe1033.mspx?mfr=true


Hope that helps
Mike


 

Comments (3)

  1. Dan Attis says:

    Mike Taghizadeh has posted some recommended limits on search configuration with Office SharePoint Server…

  2. Hinsua says:

    Excelent Post, i have published a link (in spanish) to your blog.

    http://www.sharepoint2007.co.cc

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